+++ /dev/null
-/* chgrp -- change group ownership of files
- Copyright (C) 1989-2023 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <https://www.gnu.org/licenses/>. */
-
-/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
-
-#include <config.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <grp.h>
-#include <getopt.h>
-
-#include "system.h"
-#include "chown-core.h"
-#include "fts_.h"
-#include "quote.h"
-#include "root-dev-ino.h"
-#include "xstrtol.h"
-#include "userspec.h"
-
-/* The official name of this program (e.g., no 'g' prefix). */
-#define PROGRAM_NAME "chgrp"
-
-#define AUTHORS \
- proper_name ("David MacKenzie"), \
- proper_name ("Jim Meyering")
-
-#if ! HAVE_ENDGRENT
-# define endgrent() ((void) 0)
-#endif
-
-/* The argument to the --reference option. Use the group ID of this file.
- This file must exist. */
-static char *reference_file;
-
-/* For long options that have no equivalent short option, use a
- non-character as a pseudo short option, starting with CHAR_MAX + 1. */
-enum
-{
- DEREFERENCE_OPTION = CHAR_MAX + 1,
- FROM_OPTION,
- NO_PRESERVE_ROOT,
- PRESERVE_ROOT,
- REFERENCE_FILE_OPTION
-};
-
-static struct option const long_options[] =
-{
- {"recursive", no_argument, nullptr, 'R'},
- {"changes", no_argument, nullptr, 'c'},
- {"dereference", no_argument, nullptr, DEREFERENCE_OPTION},
- {"from", required_argument, nullptr, FROM_OPTION},
- {"no-dereference", no_argument, nullptr, 'h'},
- {"no-preserve-root", no_argument, nullptr, NO_PRESERVE_ROOT},
- {"preserve-root", no_argument, nullptr, PRESERVE_ROOT},
- {"quiet", no_argument, nullptr, 'f'},
- {"silent", no_argument, nullptr, 'f'},
- {"reference", required_argument, nullptr, REFERENCE_FILE_OPTION},
- {"verbose", no_argument, nullptr, 'v'},
- {GETOPT_HELP_OPTION_DECL},
- {GETOPT_VERSION_OPTION_DECL},
- {nullptr, 0, nullptr, 0}
-};
-
-/* Return the group ID of NAME, or -1 if no name was specified. */
-
-static gid_t
-parse_group (char const *name)
-{
- gid_t gid = -1;
-
- if (*name)
- {
- struct group *grp = getgrnam (name);
- if (grp)
- gid = grp->gr_gid;
- else
- {
- uintmax_t tmp;
- if (! (xstrtoumax (name, nullptr, 10, &tmp, "") == LONGINT_OK
- && tmp <= GID_T_MAX))
- error (EXIT_FAILURE, 0, _("invalid group: %s"),
- quote (name));
- gid = tmp;
- }
- endgrent (); /* Save a file descriptor. */
- }
-
- return gid;
-}
-
-void
-usage (int status)
-{
- if (status != EXIT_SUCCESS)
- emit_try_help ();
- else
- {
- printf (_("\
-Usage: %s [OPTION]... GROUP FILE...\n\
- or: %s [OPTION]... --reference=RFILE FILE...\n\
-"),
- program_name, program_name);
- fputs (_("\
-Change the group of each FILE to GROUP.\n\
-With --reference, change the group of each FILE to that of RFILE.\n\
-\n\
-"), stdout);
- fputs (_("\
- -c, --changes like verbose but report only when a change is made\n\
- -f, --silent, --quiet suppress most error messages\n\
- -v, --verbose output a diagnostic for every file processed\n\
-"), stdout);
- fputs (_("\
- --dereference affect the referent of each symbolic link (this is\n\
- the default), rather than the symbolic link itself\n\
- -h, --no-dereference affect symbolic links instead of any referenced file\n\
-"), stdout);
- fputs (_("\
- (useful only on systems that can change the\n\
- ownership of a symlink)\n\
-"), stdout);
- emit_from_option_description (false);
- fputs (_("\
- --no-preserve-root do not treat '/' specially (the default)\n\
- --preserve-root fail to operate recursively on '/'\n\
-"), stdout);
- fputs (_("\
- --reference=RFILE use RFILE's group rather than specifying a GROUP.\n\
- RFILE is always dereferenced if a symbolic link.\n\
-"), stdout);
- fputs (_("\
- -R, --recursive operate on files and directories recursively\n\
-"), stdout);
- fputs (_("\
-\n\
-The following options modify how a hierarchy is traversed when the -R\n\
-option is also specified. If more than one is specified, only the final\n\
-one takes effect.\n\
-\n\
- -H if a command line argument is a symbolic link\n\
- to a directory, traverse it\n\
- -L traverse every symbolic link to a directory\n\
- encountered\n\
- -P do not traverse any symbolic links (default)\n\
-\n\
-"), stdout);
- fputs (HELP_OPTION_DESCRIPTION, stdout);
- fputs (VERSION_OPTION_DESCRIPTION, stdout);
- printf (_("\
-\n\
-Examples:\n\
- %s staff /u Change the group of /u to \"staff\".\n\
- %s -hR staff /u Change the group of /u and subfiles to \"staff\".\n\
-"),
- program_name, program_name);
- emit_ancillary_info (PROGRAM_NAME);
- }
- exit (status);
-}
-
-int
-main (int argc, char **argv)
-{
- bool preserve_root = false;
- gid_t gid;
-
- /* Bit flags that control how fts works. */
- int bit_flags = FTS_PHYSICAL;
-
- /* 1 if --dereference, 0 if --no-dereference, -1 if neither has been
- specified. */
- int dereference = -1;
-
- struct Chown_option chopt;
- bool ok;
- int optc;
-
- /* Change the group of a file only if it has this uid/gid.
- * -1 means there's no restriction. */
- uid_t required_uid = -1;
- gid_t required_gid = -1;
-
- initialize_main (&argc, &argv);
- set_program_name (argv[0]);
- setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
-
- atexit (close_stdout);
-
- chopt_init (&chopt);
-
- while ((optc = getopt_long (argc, argv, "HLPRcfhv", long_options, nullptr))
- != -1)
- {
- switch (optc)
- {
- case 'H': /* Traverse command-line symlinks-to-directories. */
- bit_flags = FTS_COMFOLLOW | FTS_PHYSICAL;
- break;
-
- case 'L': /* Traverse all symlinks-to-directories. */
- bit_flags = FTS_LOGICAL;
- break;
-
- case 'P': /* Traverse no symlinks-to-directories. */
- bit_flags = FTS_PHYSICAL;
- break;
-
- case 'h': /* --no-dereference: affect symlinks */
- dereference = 0;
- break;
-
- case DEREFERENCE_OPTION: /* --dereference: affect the referent
- of each symlink */
- dereference = 1;
- break;
-
- case NO_PRESERVE_ROOT:
- preserve_root = false;
- break;
-
- case PRESERVE_ROOT:
- preserve_root = true;
- break;
-
- case REFERENCE_FILE_OPTION:
- reference_file = optarg;
- break;
-
- case FROM_OPTION:
- {
- bool warn;
- char const *e = parse_user_spec_warn (optarg,
- &required_uid, &required_gid,
- nullptr, nullptr, &warn);
- if (e)
- error (warn ? 0 : EXIT_FAILURE, 0, "%s: %s", e, quote (optarg));
- break;
- }
-
- case 'R':
- chopt.recurse = true;
- break;
-
- case 'c':
- chopt.verbosity = V_changes_only;
- break;
-
- case 'f':
- chopt.force_silent = true;
- break;
-
- case 'v':
- chopt.verbosity = V_high;
- break;
-
- case_GETOPT_HELP_CHAR;
- case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
- default:
- usage (EXIT_FAILURE);
- }
- }
-
- if (chopt.recurse)
- {
- if (bit_flags == FTS_PHYSICAL)
- {
- if (dereference == 1)
- error (EXIT_FAILURE, 0,
- _("-R --dereference requires either -H or -L"));
- dereference = 0;
- }
- }
- else
- {
- bit_flags = FTS_PHYSICAL;
- }
- chopt.affect_symlink_referent = (dereference != 0);
-
- if (argc - optind < (reference_file ? 1 : 2))
- {
- if (argc <= optind)
- error (0, 0, _("missing operand"));
- else
- error (0, 0, _("missing operand after %s"), quote (argv[argc - 1]));
- usage (EXIT_FAILURE);
- }
-
- if (reference_file)
- {
- struct stat ref_stats;
- if (stat (reference_file, &ref_stats))
- error (EXIT_FAILURE, errno, _("failed to get attributes of %s"),
- quoteaf (reference_file));
-
- gid = ref_stats.st_gid;
- chopt.group_name = gid_to_name (ref_stats.st_gid);
- }
- else
- {
- char *group_name = argv[optind++];
- chopt.group_name = (*group_name ? xstrdup (group_name) : nullptr);
- gid = parse_group (group_name);
- }
-
- if (chopt.recurse && preserve_root)
- {
- static struct dev_ino dev_ino_buf;
- chopt.root_dev_ino = get_root_dev_ino (&dev_ino_buf);
- if (chopt.root_dev_ino == nullptr)
- error (EXIT_FAILURE, errno, _("failed to get attributes of %s"),
- quoteaf ("/"));
- }
-
- bit_flags |= FTS_DEFER_STAT;
- ok = chown_files (argv + optind, bit_flags,
- (uid_t) -1, gid,
- required_uid, required_gid, &chopt);
-
- main_exit (ok ? EXIT_SUCCESS : EXIT_FAILURE);
-}
-/* chown -- change user and group ownership of files
+/* chown, chgrp -- change user and group ownership of files
Copyright (C) 1989-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
#include <getopt.h>
#include "system.h"
+#include "chown.h"
#include "chown-core.h"
#include "fts_.h"
#include "quote.h"
#include "userspec.h"
/* The official name of this program (e.g., no 'g' prefix). */
-#define PROGRAM_NAME "chown"
+#define PROGRAM_NAME (chown_mode == CHOWN_CHOWN ? "chown" : "chgrp")
#define AUTHORS \
proper_name ("David MacKenzie"), \
else
{
printf (_("\
-Usage: %s [OPTION]... [OWNER][:[GROUP]] FILE...\n\
+Usage: %s [OPTION]... %s FILE...\n\
or: %s [OPTION]... --reference=RFILE FILE...\n\
"),
- program_name, program_name);
- fputs (_("\
+ program_name,
+ chown_mode == CHOWN_CHOWN ? "[OWNER][:[GROUP]]" : "GROUP",
+ program_name);
+ if (chown_mode == CHOWN_CHOWN)
+ fputs (_("\
Change the owner and/or group of each FILE to OWNER and/or GROUP.\n\
With --reference, change the owner and group of each FILE to those of RFILE.\n\
\n\
+"), stdout);
+ else
+ fputs (_("\
+Change the group of each FILE to GROUP.\n\
+With --reference, change the group of each FILE to that of RFILE.\n\
+\n\
"), stdout);
fputs (_("\
-c, --changes like verbose but report only when a change is made\n\
(useful only on systems that can change the\n\
ownership of a symlink)\n\
"), stdout);
- emit_from_option_description (true);
+ emit_from_option_description (chown_mode == CHOWN_CHOWN);
fputs (_("\
--no-preserve-root do not treat '/' specially (the default)\n\
--preserve-root fail to operate recursively on '/'\n\
"), stdout);
fputs (_("\
- --reference=RFILE use RFILE's owner and group rather than specifying\n\
- OWNER:GROUP values. RFILE is always dereferenced.\n\
+ --reference=RFILE use RFILE's ownership rather than specifying values\n\
+ RFILE is always dereferenced if a symbolic link.\n\
"), stdout);
fputs (_("\
-R, --recursive operate on files and directories recursively\n\
"), stdout);
fputs (HELP_OPTION_DESCRIPTION, stdout);
fputs (VERSION_OPTION_DESCRIPTION, stdout);
- fputs (_("\
+ if (chown_mode == CHOWN_CHOWN)
+ fputs (_("\
\n\
Owner is unchanged if missing. Group is unchanged if missing, but changed\n\
to login group if implied by a ':' following a symbolic OWNER.\n\
OWNER and GROUP may be numeric as well as symbolic.\n\
"), stdout);
- printf (_("\
+
+ if (chown_mode == CHOWN_CHOWN)
+ printf (_("\
\n\
Examples:\n\
%s root /u Change the owner of /u to \"root\".\n\
%s -hR root /u Change the owner of /u and subfiles to \"root\".\n\
"),
program_name, program_name, program_name);
+ else
+ printf (_("\
+\n\
+Examples:\n\
+ %s staff /u Change the group of /u to \"staff\".\n\
+ %s -hR staff /u Change the group of /u and subfiles to \"staff\".\n\
+"),
+ program_name, program_name);
emit_ancillary_info (PROGRAM_NAME);
}
exit (status);
error (EXIT_FAILURE, errno, _("failed to get attributes of %s"),
quoteaf (reference_file));
- uid = ref_stats.st_uid;
+ if (chown_mode == CHOWN_CHOWN)
+ {
+ uid = ref_stats.st_uid;
+ chopt.user_name = uid_to_name (ref_stats.st_uid);
+ }
gid = ref_stats.st_gid;
- chopt.user_name = uid_to_name (ref_stats.st_uid);
chopt.group_name = gid_to_name (ref_stats.st_gid);
}
else
{
+ char *ug = argv[optind];
+ if (chown_mode == CHOWN_CHGRP)
+ {
+ ug = xmalloc (1 + strlen (argv[optind]) + 1);
+ stpcpy (stpcpy (ug, ":"), argv[optind]);
+ }
+
bool warn;
- char const *e = parse_user_spec_warn (argv[optind], &uid, &gid,
+ char const *e = parse_user_spec_warn (ug, &uid, &gid,
&chopt.user_name,
&chopt.group_name, &warn);
+
+ if (ug != argv[optind])
+ free (ug);
+
if (e)
error (warn ? 0 : EXIT_FAILURE, 0, "%s: %s", e, quote (argv[optind]));
/* If a group is specified but no user, set the user name to the
empty string so that diagnostics say "ownership :GROUP"
rather than "group GROUP". */
- if (!chopt.user_name && chopt.group_name)
+ if (chown_mode == CHOWN_CHOWN && !chopt.user_name && chopt.group_name)
chopt.user_name = xstrdup ("");
optind++;
projects / thirdparty / coreutils.git / commitdiff
